How do I date antique cut crystal?

Dating relies on stylistic shifts in cutting patterns, bowl shapes, and the presence or absence of pontil marks on the base. Eighteenth-century pieces often feature simpler facet stems and thick metal, while nineteenth-century examples display heavier hobnail cutting and larger matching suites. Techniques such as intaglio engraving, acid-etching, and coloured cased overlays point towards specific decades from the Victorian era onward. Comparing form and foot construction against known period examples helps narrow the decade of manufacture.

What is the difference between crystal and glass?

True crystal contains metallic oxides, traditionally lead oxide, which increases density, light dispersion, and weight compared to standard soda-lime glass. This high lead content gives the material its characteristic refractive brilliance and clear musical ring when tapped. Legislation and trade standards regulate what can be sold as crystal based on density and refractive index. Historical pieces often demonstrate high lead weight naturally through their substantial feel in the hand.

How do I care for antique crystal?

Cleaning requires warm water, mild liquid detergent, and a soft cloth to avoid scratching the polished surfaces. Hand washing prevents the harsh chemicals and high heat of dishwashers from clouding or etching the crystal. Stands and drying mats should be padded to protect the fragile rims and delicate stems from impact. Storing glasses upright rather than resting on their rims prevents stress fractures along the lip.